For your consideration is an original late-eighteenth-century Swedish royal heraldic certification concerning the arms of the noble family von Kosboth, dated 1792 and executed on a large sheet of period laid paper measuring approximately 22 by 16.75 inches. The document is centered upon a finely engraved armorial achievement identified in print as Von KOSBOTH, accompanied by an extensive manuscript blazon in Swedish describing the shield, tinctures, fleurs-de-lis, tournament helmet, crown, standards, and mantling in precise heraldic terminology. The scale, engraved heraldry, manuscript certification, and formal approval establish the sheet as an official heraldic instrument rather than a decorative armorial display.

The manuscript blazon describes a divided shield with a gold dexter field bearing an upright red fleur-de-lis and a red sinister field bearing a silver fleur-de-lis of which the dexter half is omitted. Above the shield is an open tournament helmet surmounted by a five-leaved golden crown, from which rise nine silver-white standards on blue staffs, four disposed to the dexter and five to the sinister. The mantling is prescribed as gold externally and red internally, demonstrating the documents function as an authoritative record fixing the correct heraldic form of the von Kosboth achievement.

At lower right appears the original autograph certification of Gudmund Jran Adlerbeth (17511818), distinguished Swedish statesman, scholar, royal secretary, antiquarian, and founding member of the Swedish Academy. Adlerbeth expressly certifies that the above-described arms conform to heraldic rules and had not been assumed by any existing Swedish noble family, thereby establishing the document as a formal examination of heraldic legitimacy and non-conflict within the Swedish nobiliary system. At the head of the sheet appears the manuscript word Approberas Approved followed by the bold autograph signature of Gustav IV Adolf, King of Sweden, constituting direct royal approval of the certification during the opening year of his reign.

Preserved in original condition with period folds, age toning, light spotting, and handling wear consistent with official archival use, the document remains complete and highly legible, with the engraved arms, manuscript blazon, Adlerbeth certification, and royal autograph all intact. Combining technical heraldic description, institutional certification, and the direct autograph approval of Gustav IV Adolf, this 1792 von Kosboth document represents an unusually complete and historically significant survival of Swedish royal heraldic administration and noble armorial regulation at the close of the Gustavian era.